diff options
| author | BrokenTalentsFun CI <ci@brokentalents.fun> | 2018-06-08 19:36:11 +0200 |
|---|---|---|
| committer | schneefux <schneefux+commit@schneefux.xyz> | 2018-12-13 17:09:16 +0100 |
| commit | 10cf870629e860616899848d7f1c849d0b810342 (patch) | |
| tree | 4c7e2831f3857c07681fefee1611d1c49f0ef25b /dist/workbox-v3.2.0/workbox-range-requests.dev.js | |
| parent | 505a67dc32206a0c603258d856fcbe00e53fc1f5 (diff) | |
| download | brokentalents-10cf870629e860616899848d7f1c849d0b810342.tar.gz brokentalents-10cf870629e860616899848d7f1c849d0b810342.zip | |
automatic build
Diffstat (limited to 'dist/workbox-v3.2.0/workbox-range-requests.dev.js')
| -rw-r--r-- | dist/workbox-v3.2.0/workbox-range-requests.dev.js | 299 |
1 files changed, 299 insertions, 0 deletions
diff --git a/dist/workbox-v3.2.0/workbox-range-requests.dev.js b/dist/workbox-v3.2.0/workbox-range-requests.dev.js new file mode 100644 index 0000000..c59a486 --- /dev/null +++ b/dist/workbox-v3.2.0/workbox-range-requests.dev.js @@ -0,0 +1,299 @@ +this.workbox = this.workbox || {}; +this.workbox.rangeRequests = (function (exports,WorkboxError_mjs,assert_mjs,logger_mjs) { +'use strict'; + +try { + self.workbox.v['workbox:range-requests:3.2.0'] = 1; +} catch (e) {} // eslint-disable-line + +/* + Copyright 2017 Google Inc. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + https://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +/** + * @param {Blob} blob A source blob. + * @param {number|null} start The offset to use as the start of the + * slice. + * @param {number|null} end The offset to use as the end of the slice. + * @return {Object} An object with `start` and `end` properties, reflecting + * the effective boundaries to use given the size of the blob. + * + * @private + */ +function calculateEffectiveBoundaries(blob, start, end) { + { + assert_mjs.assert.isInstance(blob, Blob, { + moduleName: 'workbox-range-requests', + funcName: 'calculateEffectiveBoundaries', + paramName: 'blob' + }); + } + + const blobSize = blob.size; + + if (end > blobSize || start < 0) { + throw new WorkboxError_mjs.WorkboxError('range-not-satisfiable', { + size: blobSize, + end, + start + }); + } + + let effectiveStart; + let effectiveEnd; + + if (start === null) { + effectiveStart = blobSize - end; + effectiveEnd = blobSize; + } else if (end === null) { + effectiveStart = start; + effectiveEnd = blobSize; + } else { + effectiveStart = start; + // Range values are inclusive, so add 1 to the value. + effectiveEnd = end + 1; + } + + return { + start: effectiveStart, + end: effectiveEnd + }; +} + +/* + Copyright 2017 Google Inc. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + https://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +/** + * @param {string} rangeHeader A Range: header value. + * @return {Object} An object with `start` and `end` properties, reflecting + * the parsed value of the Range: header. If either the `start` or `end` are + * omitted, then `null` will be returned. + * + * @private + */ +function parseRangeHeader(rangeHeader) { + { + assert_mjs.assert.isType(rangeHeader, 'string', { + moduleName: 'workbox-range-requests', + funcName: 'parseRangeHeader', + paramName: 'rangeHeader' + }); + } + + const normalizedRangeHeader = rangeHeader.trim().toLowerCase(); + if (!normalizedRangeHeader.startsWith('bytes=')) { + throw new WorkboxError_mjs.WorkboxError('unit-must-be-bytes', { normalizedRangeHeader }); + } + + // Specifying multiple ranges separate by commas is valid syntax, but this + // library only attempts to handle a single, contiguous sequence of bytes. + // https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Range#Syntax + if (normalizedRangeHeader.includes(',')) { + throw new WorkboxError_mjs.WorkboxError('single-range-only', { normalizedRangeHeader }); + } + + const rangeParts = /(\d*)-(\d*)/.exec(normalizedRangeHeader); + // We need either at least one of the start or end values. + if (rangeParts === null || !(rangeParts[1] || rangeParts[2])) { + throw new WorkboxError_mjs.WorkboxError('invalid-range-values', { normalizedRangeHeader }); + } + + return { + start: rangeParts[1] === '' ? null : Number(rangeParts[1]), + end: rangeParts[2] === '' ? null : Number(rangeParts[2]) + }; +} + +/** + * Given a `Request` and `Response` objects as input, this will return a + * promise for a new `Response`. + * + * @param {Request} request A request, which should contain a Range: + * header. + * @param {Response} originalResponse An original response containing the full + * content. + * @return {Promise<Response>} Either a `206 Partial Content` response, with + * the response body set to the slice of content specified by the request's + * `Range:` header, or a `416 Range Not Satisfiable` response if the + * conditions of the `Range:` header can't be met. + * + * @memberof workbox.rangeRequests + */ +let createPartialResponse = (() => { + var _ref = babelHelpers.asyncToGenerator(function* (request, originalResponse) { + try { + { + assert_mjs.assert.isInstance(request, Request, { + moduleName: 'workbox-range-requests', + funcName: 'createPartialResponse', + paramName: 'request' + }); + + assert_mjs.assert.isInstance(originalResponse, Response, { + moduleName: 'workbox-range-requests', + funcName: 'createPartialResponse', + paramName: 'originalResponse' + }); + } + + const rangeHeader = request.headers.get('range'); + if (!rangeHeader) { + throw new WorkboxError_mjs.WorkboxError('no-range-header'); + } + + const boundaries = parseRangeHeader(rangeHeader); + const originalBlob = yield originalResponse.blob(); + + const effectiveBoundaries = calculateEffectiveBoundaries(originalBlob, boundaries.start, boundaries.end); + + const slicedBlob = originalBlob.slice(effectiveBoundaries.start, effectiveBoundaries.end); + const slicedBlobSize = slicedBlob.size; + + const slicedResponse = new Response(slicedBlob, { + // Status code 206 is for a Partial Content response. + // See https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/206 + status: 206, + statusText: 'Partial Content', + headers: originalResponse.headers + }); + + slicedResponse.headers.set('Content-Length', slicedBlobSize); + slicedResponse.headers.set('Content-Range', `bytes ${effectiveBoundaries.start}-${effectiveBoundaries.end - 1}/` + originalBlob.size); + + return slicedResponse; + } catch (error) { + { + logger_mjs.logger.warn(`Unable to construct a partial response; returning a ` + `416 Range Not Satisfiable response instead.`); + logger_mjs.logger.groupCollapsed(`View details here.`); + logger_mjs.logger.unprefixed.log(error); + logger_mjs.logger.unprefixed.log(request); + logger_mjs.logger.unprefixed.log(originalResponse); + logger_mjs.logger.groupEnd(); + } + + return new Response('', { + status: 416, + statusText: 'Range Not Satisfiable' + }); + } + }); + + return function createPartialResponse(_x, _x2) { + return _ref.apply(this, arguments); + }; +})(); + +/* + Copyright 2016 Google Inc. All Rights Reserved. + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + http://www.apache.org/licenses/LICENSE-2.0 + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +/** + * The range request plugin makes it easy for a request with a 'Range' header to + * be fulfilled by a cached response. + * + * It does this by intercepting the `cachedResponseWillBeUsed` plugin callback + * and returning the appropriate subset of the cached response body. + * + * @memberof workbox.rangeRequests + */ +class Plugin { + /** + * @param {Object} options + * @param {Request} options.request The original request, which may or may not + * contain a Range: header. + * @param {Response} options.cachedResponse The complete cached response. + * @return {Promise<Response>} If request contains a 'Range' header, then a + * new response with status 206 whose body is a subset of `cachedResponse` is + * returned. Otherwise, `cachedResponse` is returned as-is. + * + * @private + */ + cachedResponseWillBeUsed({ request, cachedResponse }) { + return babelHelpers.asyncToGenerator(function* () { + // Only return a sliced response if there's something valid in the cache, + // and there's a Range: header in the request. + if (cachedResponse && request.headers.has('range')) { + return yield createPartialResponse(request, cachedResponse); + } + + // If there was no Range: header, or if cachedResponse wasn't valid, just + // pass it through as-is. + return cachedResponse; + })(); + } +} + +/* + Copyright 2017 Google Inc. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + https://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +/* + Copyright 2017 Google Inc. + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + https://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +exports.createPartialResponse = createPartialResponse; +exports.Plugin = Plugin; + +return exports; + +}({},workbox.core._private,workbox.core._private,workbox.core._private)); + +//# sourceMappingURL=workbox-range-requests.dev.js.map |
